Police said six California residents have been arrested on charges related to a phone scam that targeted seniors in Amarillo.

Amarillo police teamed with authorities in Ontario, Calif., on the investigation into a scam that affected people in several states who gave up hundreds of thousands of dollars, Cpl. Jerry Neufeld said.

On Jan. 29, police warned Amarillo residents of a scam in which a caller contacted an elderly woman and claimed he was her grandson and that he had been arrested.

The scammer had access to the woman’s identifying information, and he told the woman he needed her to send money to an address in Ontario, authorities said.

The woman then spoke over the phone with another caller who pretended to be a police officer, an Ontario Police Department news release said.

After police confirmed the call to be a scam, APD officers contacted Ontario police.

Officers then used a carrier service to send an empty package to the Ontario address the scammer gave the woman.

The carrier service notified Ontario police when the package was expected to be delivered, and police said they saw Desiree Marie Delgado and James Michael Colangelo — both 19 and from Fontana, Calif. — at the address.

Ontario police said they arrested the pair, and discovered more scam victims in Texas and Nebraska.

A victim in Nebraska sent a number of packages totaling more than $200,000 cash to scammers in California, authorities said. Police were only able to recover a small amount of the money.

Two other victims in Texas and Nebraska were scammed for nearly $15,000 cash, but authorities said that money was recovered by police and returned.

Authorities said all of the accused scammers were booked into the West Valley Detention Center in Rancho Cucamonga, Calif., on charges including grand theft, identity theft, theft from an elder, elder abuse and conspiracy.

Police said Colangelo and Bosch were also charged with methamphetamine possession.

Amarillo residents who might have fallen victim to this scam can call Ontario Police Detective Craig Pefferle at 909-395-2754.